Perhaps you should try some spelling variations:
leur developpement » le developpement, deux developpements, de developpement
technology tools » technology thesis
developpement de » developpement des, developpement durable
tools inflation » does inflation, taxes inflation, tools evaluation
inflation water » inflation rate, inflation rates, inflation enter
water rules » water sales, water rates, paper rules

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology tools inflation water rules _ communication a leur developpement de l'afrique.*.